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    New Haven County, CT Duplexes for Sale

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    225 properties
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    Two-Family Property with Off-Street Parking
    Updated: Aug 24
    Two-Family Property with Off-Street Parking

    215 Dwight Street, New Haven, CT 06511

    $725,000
    4,862 sqft 0.09 AC lot
    4,862‑square‑foot two‑family property on a 0.09‑acre lot
    Upper unit spans the 2nd and 3rd floors and includes 4 bedrooms
    First‑floor kitchen and bathroom renovated with granite, stainless appliances, and new flooring
    Two off‑street parking spaces, with currently one space per unit
    Heated basement, backyard, porch, and garden area
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    Two-Unit Duplex with Deck
    Updated: Sep 18
    Two-Unit Duplex with Deck

    103 New Haven Avenue, Milford, CT 06460

    $899,900
    1,651 sqft 0.23 AC lot
    Two‑family property with units on separate floors
    1,651 square feet on 0.23 acres
    Four bedrooms and two bathrooms
    Built in 1925 with baseboard heating and window‑unit cooling
    Deck, garden area, and shed
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    Duplex with Central Air
    Duplex with Central Air

    78 Highland Avenue, East Haven, CT 06512

    $630,000
    3,559 sqft 0.39 AC lot

    Two separate units have gas forced-air heat and central air conditioning, with public water and sewer service.

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    Remodeled Duplex with Finished Third Floor
    Remodeled Duplex with Finished Third Floor

    50 Anthony Street, New Haven, CT 06515

    $619,900
    4,000 sqft

    Two-unit property with upgraded interiors, modernized systems, and flexible additional living space.

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    Side-by-Side Duplex
    Side-by-Side Duplex

    53-55 Elihu Street, Hamden, CT 06517

    $700,000
    2,828 sqft 0.26 AC lot

    Two mirror-image residences offer classic details, updated kitchens and baths, private basements, and shared outdoor amenities.

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    Renovated Two-Unit Duplex
    Renovated Two-Unit Duplex

    36 Merwin Avenue, Milford, CT 06460

    $699,000
    1,400 sqft 0.07 AC lot

    Fully renovated duplex with separate systems, central air, and water views.

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    Duplex with Inground Pool
    Duplex with Inground Pool

    356 Humphrey Street, New Haven, CT 06511

    $985,000
    3,772 sqft 0.12 AC lot

    Legal two-family property with a flexible multi-level layout, original woodwork, and public water and sewer.

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    Historic Two-Family with Parking
    Historic Two-Family with Parking

    215 Dwight Street, New Haven, CT 06511

    $725,000
    4,862 sqft

    Corner property offers two residential units, private outdoor space, and convenient access to downtown amenities.

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    Two-Unit Duplex with Above-Ground Pool
    Two-Unit Duplex with Above-Ground Pool

    561 Savin Avenue, West Haven, CT 06516

    $619,900
    2,932 sqft 0.17 AC lot

    Separate gas and electric meters serve the two residences, with laundry in the first-floor unit and hookups upstairs.

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    2-Unit Duplex with Garden Apartment
    2-Unit Duplex with Garden Apartment

    75 Perkins Street, New Haven, CT 06513

    $349,900
    2,112 sqft 0.07 AC lot

    A separate garden-level apartment is leased through September 1, 2027.

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    Two-Unit Duplex with Central Air
    Two-Unit Duplex with Central Air

    78 Highland Avenue, East Haven, CT 06512

    $630,000
    3,559 sqft 0.39 AC lot

    Improved two-family residence with public water and sewer serving each unit.

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    Renovated Two-Unit Duplex
    Renovated Two-Unit Duplex

    33 Holbrook Street, Ansonia, CT 06401

    $595,000
    2,385 sqft 0.07 AC lot

    Two residences feature independent utilities, private outdoor areas, updated kitchens, and in-unit washer/dryer hookups.

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    2-Unit Duplex with Separate Entrances
    2-Unit Duplex with Separate Entrances

    118 Bull Avenue, Wallingford, CT 06492

    $489,000
    2,016 sqft 0.25 AC lot

    Each residence includes two bedrooms, in-unit laundry, and its own driveway and utility systems.

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    Updated Two-Family Duplex
    Updated Two-Family Duplex

    78 Highland Ave, East Haven, CT 06512

    $630,000
    3,559 sqft 0.39 AC lot

    Two-unit residence with separate central air conditioning, public utilities, basement space, and outdoor living areas.

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    Two-Unit Duplex with Basement Laundry
    Two-Unit Duplex with Basement Laundry

    20 Venice Avenue, Waterbury, CT 06708

    $475,000
    2,400 sqft 0.17 AC lot

    Each residence includes three bedrooms, separate living and dining areas, a kitchen, and a full bathroom.

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    Two-Unit Duplex with Four-Car Garage
    Two-Unit Duplex with Four-Car Garage

    30 Summer Street, Meriden, CT 06451

    $349,900
    2,760 sqft 0.16 AC lot

    Two residences feature separate utilities and multi-level living areas.

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    Duplex With Accessory Apartment
    Duplex With Accessory Apartment

    6 Mettler St, Woodbridge, CT 06525

    $553,000
    1,838 sqft

    Cape-style duplex with separate utilities and a heated attached garage for flexible occupancy arrangements.

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    Two-Unit Residential Income Property
    Two-Unit Residential Income Property

    49 Meadow Street, East Haven, CT 06512

    $649,900
    896 sqft 0.38 AC lot

    Mixed single-family and 2-family configuration sold as-is, with extensive rehab needs and a cash sale required.

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    2-Unit Duplex with Sun Porch
    2-Unit Duplex with Sun Porch

    217 Alden Ave, New Haven, CT 06515

    $750,000
    2,593 sqft

    Both residences are occupied and offer three- and four-bedroom layouts with on-site laundry and off-street parking.

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    Six-Bedroom Duplex with Detached Garage
    Six-Bedroom Duplex with Detached Garage

    323 W Division Street, New Haven, CT 06511

    $469,900
    2,268 sqft 0.08 AC lot

    RM2-zoned property features separate living arrangements across three floors and a fenced yard.

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    Five-Unit Apartment Portfolio
    Five-Unit Apartment Portfolio

    363-367 High St, Naugatuck, CT 06770

    $759,000
    5,191 sqft

    Three contiguous rental buildings combine a renovated structure with two duplex properties in one operating portfolio.

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    Two-Unit Colonial Duplex
    Two-Unit Colonial Duplex

    977 Townsend Avenue, New Haven, CT 06512

    $399,000
    1,626 sqft 0.16 AC lot

    Each residence has its own entrance, utilities, and laundry facilities.

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    Two-Unit Duplex with Sun Porch
    Two-Unit Duplex with Sun Porch

    217 Alden, New Haven, CT 06515

    $750,000
    2,593 sqft

    Two separate apartments combine spacious bedroom layouts with shared laundry, outdoor space, and off-street parking.

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    Two-Unit Duplex with Outdoor Space
    Two-Unit Duplex with Outdoor Space

    350 S Main Street, Naugatuck, CT 06770

    $439,000
    2,432 sqft 0.35 AC lot

    Each residence offers three bedrooms, a full bathroom, updated kitchen, and separate utilities.

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    New Haven County, CT Duplexes Market Trends and Statistics

    Explore 225 duplexes for sale in New Haven County, CT, showcased through 225 active listings on our real estate platform. These investment opportunities span a total of 467,542 square feet of properties for sale, with an estimated market value of $108,327,987.

    Sale prices for two-family homes in New Haven County, CT start at $199,000, averaging $487,963, and reaching up to $1,449,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Featured New Haven County Real Estate Agencies

    Realmo connects you with licensed New Haven County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

    Property World
    500 Boston Post Road Milford, CT 06460
    Phone: 12038771221
    propertyworldusa.com
    DAVE JONES REALTY LLC
    PO BOX 7363, 33 waterbury Road Waterbury, CT 06712
    Phone: 12039102638
    WWW.DAVEJONESREALTY.COM
    Ghent Realty Advisors
    193 Grand Street, Suite 414 Waterbury, CT 06702
    Phone: 12035432847
    www.ghentrealty.com
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